Doing the Maha bandha first, then holding the air by kumbhaka pranayama do Uddiyan bandha, it is called mahabedha. Only those sadhakas who do this mahabedha including Maha bandha and Moola bandha, are known as the scholars of the best Yogic knowledge among the yogis. By doing this Mahabedha, yogis penetrate the Brahma Granthi (gland) through the passage of Sushumna (a central nerve that remains dormant in the spine).